3705431 has 2 divisors, whose sum is σ = 3705432. Its totient is φ = 3705430.

The previous prime is 3705421. The next prime is 3705451. The reversal of 3705431 is 1345073.

It is a happy number.

3705431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3705431 - 2⁶ = 3705367 is a prime.

It is a super-2 number, since 2×3705431² = 27460437791522, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3705397 and 3705406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3705421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1852715 + 1852716.

It is an arithmetic number, because the mean of its divisors is an integer number (1852716).

Almost surely, 2^3705431 is an apocalyptic number.

3705431 is a deficient number, since it is larger than the sum of its proper divisors (1).

3705431 is an equidigital number, since it uses as much as digits as its factorization.

3705431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 3705431 is about 1924.9496097301. The cubic root of 3705431 is about 154.7436762466.

The spelling of 3705431 in words is "three million, seven hundred five thousand, four hundred thirty-one".